1. Land preparation In order to prevent the problems of mad growth, premature aging and lodging after the pumpkin is covered with film, the quality of the land preparation must be improved. Pay attention to the early and deep turning and raking after the spring to achieve the leveling of the ground and no large clumps. Plastic mulching should be cultivated with high ridges, and the ridges should be straight, preferably in the north-south direction. The ridges are 20 cm wide, 20 cm wide, 50 cm wide, and 10-12 cm high. Then apply 2000 kg of decomposed farm manure per mu in the ditch.
2. The film should be spread on the ground immediately after the pumpkin border is finished, so as to help maintain moisture and increase the temperature. The film should be selected on a sunny day, and the film should be spread under low temperature conditions. It will easily break after thermal expansion. When spreading the film, the spread should be slow, flattened and spread, so that the mulch is completely close to the ground. The two sides of the film should be covered with soil to avoid air leakage. Between the two ridges, 20 cm should be left uncovered for irrigation.
3. Planting method When the pumpkin is cultivated with plastic film, it can adopt the method of nursery cultivation or direct seeding in the field. There are generally two methods of planting. One is to lay the film first, and then plant it in the mulch according to the row spacing. Another method is to plant seedlings first, and then align the seedling openings when spreading the film.
4. Matters needing attention Pumpkin mulching is not conducive to cultivating and fertilizing, so sufficient base fertilizer should be applied before the ground is covered. Generally, slow-acting fertilizers are used to avoid burning buds and roots. Deep tie. After the film is coated, the external water supply is low, so pay attention to the moisture after the film is coated. When the water is insufficient, the soil temperature rises after the film is coated, and the soil moisture rises, which will make the 5-10 cm soil layer dry and dry Irrigate timely to prevent premature aging.
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